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Costar Group, Inc.

CSGP
Exchange
Nasdaq
Industry
Services-Business Services, NEC
SEC CIK
0001057352

In the last 90 days, Costar Group, Inc. insiders filed 1 open-market purchase and 2 sales; 760 institutions reported holding it in 13F filings for Q2 2026, worth $11.7B in total; superinvestors Akre Capital Management and Weitz Investment Management hold it.

13F holders, Q1 2024

Institutional positions in Costar Group, Inc. as of Mar 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
767
+36 vs. Q4 2023
Shares held
398.4M
+5.40M (+1.4%) vs. Q4 2023
Total value
$38.4B
+$4.10B (+12.0%) vs. Q4 2023
New holders
91
301 more added
Sold out
55
265 more reduced

6 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting CSGP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2024: 767 institutions
Q1 2021: 593 institutionsQ2 2021: 607 institutionsQ3 2021: 594 institutionsQ4 2021: 633 institutionsQ1 2022: 589 institutionsQ2 2022: 591 institutionsQ3 2022: 634 institutionsQ4 2022: 704 institutionsQ1 2023: 692 institutionsQ2 2023: 714 institutionsQ3 2023: 690 institutionsQ4 2023: 737 institutionsQ1 2024: 767 institutionsQ2 2024: 767 institutionsQ3 2024: 773 institutionsQ4 2024: 805 institutionsQ1 2025: 858 institutionsQ2 2025: 873 institutionsQ3 2025: 905 institutionsQ4 2025: 847 institutionsQ1 2026: 797 institutionsQ2 2026: 760 institutions
Value heldQ1 2024: $38.4B
Q1 2021: $31.2BQ2 2021: $31.1BQ3 2021: $32.3BQ4 2021: $29.6BQ1 2022: $25.2BQ2 2022: $23.0BQ3 2022: $28.0BQ4 2022: $30.4BQ1 2023: $26.7BQ2 2023: $35.5BQ3 2023: $30.1BQ4 2023: $34.4BQ1 2024: $38.4BQ2 2024: $29.3BQ3 2024: $30.0BQ4 2024: $28.9BQ1 2025: $33.9BQ2 2025: $34.2BQ3 2025: $34.9BQ4 2025: $28.4BQ1 2026: $16.8BQ2 2026: $11.7B
Institutions holding CSGP and their total value by quarter
QuarterHoldersValue
Q2 2026760$11.7B
Q1 2026797$16.8B
Q4 2025847$28.4B
Q3 2025905$34.9B
Q2 2025873$34.2B
Q1 2025858$33.9B
Q4 2024805$28.9B
Q3 2024773$30.0B
Q2 2024767$29.3B
Q1 2024767$38.4B
Q4 2023737$34.4B
Q3 2023690$30.1B
Q2 2023714$35.5B
Q1 2023692$26.7B
Q4 2022704$30.4B
Q3 2022634$28.0B
Q2 2022591$23.0B
Q1 2022589$25.2B
Q4 2021633$29.6B
Q3 2021594$32.3B
Q2 2021607$31.1B
Q1 2021593$31.2B

Institutions, Q1 2024

Shares, value and share of portfolio for each institution holding Costar Group, Inc.; share changes are against Q4 2023.

Institutions holding CSGP in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Commonwealth of Pennsylvania Public School Empls Retrmt Sys89,648$8.66M0.06%+222+0.2%Added
Generate Investment Management Ltd89,133$8.61M0.68%+21,332+31.5%Added
Amalgamated Bank86,011$8.31M0.07%−15,037−14.9%Reduced
Texas Permanent School Fund84,433$8.16M0.06%+98+0.1%Added
IFM Investors Pty Ltd82,586$7.98M0.09%+1,824+2.3%Added
Forsta Ap-Fonden80,700$7.80M0.07%+8,900+12.4%Added
Skandinaviska Enskilda Banken AB (publ)80,502$7.77M0.04%−210−0.3%Reduced
Jane Street Group, LLC79,167$7.65M0.01%−13,311−14.4%Reduced
Azimuth Capital Investment Management LLC78,515$7.58M0.31%−16,587−17.4%Reduced
USS Investment Management Ltd76,697$7.41M0.06%+5,952+8.4%Added
US Bancorp76,143$7.36M0.01%−21,725−22.2%Reduced
Nissay Asset Management Corp72,470$7.00M0.05%+17,403+31.6%Added
Mediolanum International Funds Ltd72,556$6.98M0.11%+72,556New
Boston Private Wealth LLC72,218$6.98M0.16%−10,230−12.4%Reduced
Czech National Bank71,851$6.94M0.09%+329+0.5%Added
Soros Capital Management LLC71,800$6.94M1.90%+71,800New
Xponance, Inc.70,171$6.78M0.07%+2,053+3.0%Added
Utah Retirement Systems69,880$6.75M0.08%−100−0.1%Reduced
Federation des caisses Desjardins du Quebec76,941$6.75M0.05%+2,353+3.2%Added
Regions Financial Corp69,435$6.71M0.05%−17,329−20.0%Reduced
DnB Asset Management AS67,952$6.56M0.03%−27,250−28.6%Reduced
Nisa Investment Advisors, LLC66,772$6.45M0.04%−1,233−1.8%Reduced
Daiwa Securities Group Inc.65,707$6.35M0.04%+5,737+9.6%Added
Tredje AP-fonden65,124$6.29M0.07%−20,291−23.8%Reduced
Assetmark, Inc65,104$6.29M0.02%−3,426−5.0%Reduced
12 West Capital Management LP65,000$6.28M0.57%+65,000New
Schonfeld Strategic Advisors LLC63,630$6.15M0.05%−7,500−10.5%Reduced
Intrinsic Edge Capital Management LLC62,742$6.06M0.51%00.0%Unchanged
Fiera Capital Corp62,722$6.06M0.02%+10,671+20.5%Added
Banco Santander, S.A.62,518$6.04M0.07%−860−1.4%Reduced
Point72 Asset Management, L.P.62,200$6.01M0.02%−99,800−61.6%Reduced
Shell Asset Management Co80,414$5.96M0.27%−4,909−5.8%Reduced
Holocene Advisors, LP61,516$5.94M0.02%+61,516New
Taikang Asset Management (Hong Kong) Co Ltd61,114$5.90M1.24%00.0%Unchanged
Jefferies Financial Group Inc.60,000$5.80M0.12%00.0%Unchanged
Davenport & Co LLC59,316$5.73M0.04%−6,226−9.5%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund59,070$5.71M0.06%+5,600+10.5%Added
Motley Fool Asset Management LLC58,743$5.67M0.37%+47,520+423.4%Added
CWM Advisors, LLC56,677$5.47M0.56%+518+0.9%Added
Louisiana State Employees Retirement System55,800$5.39M0.10%−1,300−2.3%Reduced
New York Life Investment Management LLC55,653$5.38M0.05%−2,123−3.7%Reduced
Mutual of America Capital Management LLC53,543$5.17M0.06%−1,082−2.0%Reduced
Blue Zone Wealth Advisors, LLC52,521$5.07M1.74%+875+1.7%Added
Pitcairn Co52,249$5.05M0.33%+252+0.5%Added
Yousif Capital Management, LLC52,237$5.05M0.06%−837−1.6%Reduced
Shelton Capital Management51,584$4.98M0.14%+1,195+2.4%Added
Janney Montgomery Scott LLC50,438$4.87M0.01%+2,706+5.7%Added
Platinum Investment Management Ltd50,000$4.83M0.19%+50,000New
Canada Pension Plan Investment Board49,492$4.78M0.01%00.0%Unchanged
British Columbia Investment Management Corp48,756$4.71M0.03%+1,746+3.7%Added
Envestnet Portfolio Solutions, Inc.48,541$4.69M0.02%−1,092−2.2%Reduced
Commerce Bank48,366$4.67M0.03%−2,326−4.6%Reduced
Public Sector Pension Investment Board48,283$4.66M0.03%−621−1.3%Reduced
Shaker Investments LLC47,120$4.55M1.93%+52+0.1%Added
Pacer Advisors, Inc.47,042$4.54M0.01%−4,589−8.9%Reduced
Bank of Nova Scotia46,770$4.52M0.01%+863+1.9%Added
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main46,754$4.52M0.01%−3,241−6.5%Reduced
Equitable Trust Co45,806$4.42M0.31%+45,806New
AE Wealth Management LLC45,307$4.38M0.05%−134,668−74.8%Reduced
Formula Growth Ltd44,000$4.25M1.36%00.0%Unchanged
Swedbank AB43,713$4.22M0.01%+2,456+6.0%Added
Public Employees Retirement Association of Colorado43,695$4.22M0.02%−2,735−5.9%Reduced
Schroder Investment Management Group43,653$4.22M0.00%+1,669+4.0%Added
Robeco Institutional Asset Management B.V.43,277$4.18M0.01%−16,809−28.0%Reduced
Nishkama Capital, LLC42,000$4.06M0.46%+42,000New
Oppenheimer & Co Inc41,356$3.99M0.07%+978+2.4%Added
Jump Financial, LLC40,605$3.92M0.11%+27,837+218.0%Added
Tsai Capital Corp40,208$3.88M4.00%+1,813+4.7%Added
Healthcare of Ontario Pension Plan Trust Fund40,000$3.86M0.01%−50,710−55.9%Reduced
KP Management LLC38,500$3.72M1.60%00.0%Unchanged
iA Global Asset Management Inc.38,375$3.71M0.08%+1,648+4.5%Added
Connor, Clark & Lunn Investment Management Ltd.38,187$3.69M0.02%+27,889+270.8%Added
Mariner, LLC38,168$3.69M0.01%+2,169+6.0%Added
Yarbrough Capital, LLC37,950$3.67M0.16%00.0%Unchanged
Elo Mutual Pension Insurance Co37,313$3.60M0.08%+1,528+4.3%Added
Pathstone Holdings, LLC37,272$3.60M0.02%−1,990−5.1%Reduced
Papp L Roy & Associates36,510$3.53M0.42%−1,030−2.7%Reduced
Profund Advisors LLC36,198$3.50M0.14%−2,351−6.1%Reduced
HighTower Advisors, LLC36,400$3.50M0.01%−7,324−16.8%Reduced
S.E.E.D. Planning Group LLC36,083$3.49M1.27%−130.0%Reduced
Cambridge Investment Research Advisors, Inc.35,284$3.41M0.01%−24,879−41.4%Reduced
Atria Investments LLC35,277$3.41M0.05%−8,599−19.6%Reduced
Captrust Financial Advisors35,266$3.41M0.01%−9,650−21.5%Reduced
Oregon Public Employees Retirement Fund34,865$3.37M0.07%+3,021+9.5%Added
AQR Capital Management LLC34,636$3.35M0.01%+945+2.8%Added
Abn Amro Investment Solutions34,300$3.31M0.06%−9,027−20.8%Reduced
Park Avenue Securities LLC34,299$3.31M0.04%−1,212−3.4%Reduced
Moody National Bank Trust Division33,941$3.28M0.26%−1,700−4.8%Reduced
Gulf International Bank (UK) Ltd33,743$3.26M0.08%+271+0.8%Added
Linden Thomas Advisory Services, LLC33,657$3.25M0.52%+43+0.1%Added
Next Century Growth Investors LLC32,865$3.17M0.28%+12,731+63.2%Added
SYSTM Wealth Solutions LLC32,381$3.13M0.40%+2,974+10.1%Added
CX Institutional32,122$3.10M0.15%+29,749+1,253.6%Added
Bessemer Group Inc32,119$3.10M0.01%+13,558+73.0%Added
Barbara Oil Co.32,000$3.09M1.31%00.0%Unchanged
Skye Global Management LP31,500$3.04M0.07%+31,500New
DoubleLine ETF Adviser LP31,154$3.01M0.77%+3,075+11.0%Added
Wealthfront Advisers LLC31,104$3.00M0.01%−20.0%Reduced
Meeder Asset Management Inc31,035$3.00M0.19%+31,035New
Kentucky Retirement Systems31,012$3.00M0.09%−1,661−5.1%Reduced